<script setup lang="ts">
import { ref } from "vue";
import type { BannerItem } from "@/types/home";

const activeIndex = ref(0);

const props = defineProps<{
  list: BannerItem[]
}>();


/*轮播图切换时的回调函数*/
const changeActive: UniHelper.SwiperOnChange = (event) => {
  activeIndex.value = event.detail.current;
};

</script>

<template>
  <view class="carousel">
    <swiper :circular="true" :autoplay="true" :interval="3000" @change="changeActive">
      <swiper-item v-for="(item) in list" :key="item.id">
          <image mode="aspectFill" class="image" :src="item.imgUrl"></image>
      </swiper-item>
    </swiper>
    <view class="indicator">
      <text v-for="(item, index) in list" :key="item" class="dot" :class="{ active: index === activeIndex }"></text>
    </view>
  </view>
</template>

<style lang="scss">
.carousel {
  height: 350rpx;
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  background-color: #efefef;

  .indicator {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 16rpx;
    display: flex;
    justify-content: center;

    .dot {
      width: 30rpx;
      height: 6rpx;
      margin: 0 8rpx;
      border-radius: 6rpx;
      background-color: rgba(255, 255, 255, 0.4);
    }

    .active {
      background-color: #fff;
    }
  }

  .navigator,
  .image {
    width: 100%;
    height: 100%;
  }
}
</style>
